Patent DE-10136063-A1 (DE)
Title: Optical data carrier comprising information layer of new or known cationic aminoheterocyclic dye on substrate, can be written upon and read with blue, red or infrared (preferably laser) light
Inventor: BERNETH HORST
IPC: G11B7/246
Filed: 2001-07-25
Abstract: In an optical data carrier comprising a substrate carrying on its surface an information layer which can be written upon and read with blue, red or infrared light and contains a light absorbing compound (I) and a binder, (I) consists of cationic aminoheterocyclic dye(s). Some of the dyes (I) are new compounds.  In an optical data carrier comprising a (preferably transparent) substrate (optionally precoated with reflection layer(s)) carrying on its surface an information layer and optionally reflection layer(s) and/or a protective layer, another substrate or a covering layer, where the information layer can be written upon and read with blue, red or infrared (preferably laser) light and contains a light absorbing compound (I) and a binder, (I) consists of at least one cationic aminoheterocyclic dye. Independent claims are included for:  (i) optical data carriers as above, which have been written upon with blue, red or infrared (preferably laser) light; (ii) the production of optical data carriers as above, by coating the optionally precoated substrate with (I) (optionally together with binders, additives and/or solvents) and applying the further optional layers if required; (iii) the use of (I), having an absorption  lambda max2 in the 420-650 nm region or lambda max3 in the 650-810 nm region, in the information layer of a ROM optical data carrier; (iv) the use of (I) in the information layer of a ROM optical data carrier which can be written upon and read with blue, red or infrared (preferably laser) light; and  (v) new cationic aminoheterocyclic dyes of formula (I'); A = group of formula (A1), (A2) or (A3);  X1, X3  = O or S;  X2  = CR10 or N;  X4 = CR11 or N;  R3  = H, Me, Et, propyl, Cl, Ph, tolyl, methoxyphenyl, xylyl or NR8R9;  R6  = H, Me, Et, propyl, Cl, Ph, tolyl, methoxyphenyl, xylyl or NR12R13;  or R3 + R6 may also  = O, CH2 or C(Me)2 bridge if n = 0;  R1, R2, R4, R5, R8, R9, R12, R13  = H, propyl, butyl, cyanoethyl, hydroxyethyl, hydroxypropyl, 5-6C cycloalkyl, tolyl, methoxyphenyl, xylyl, benzyl, phenethyl or phenylpropyl;  or NR1R2, NR4R5, NR8R9 or NR12R13  = pyrrolidino, morpholino, piperazino, N-methylpiperazino or piperidino;  R10, R11 = H, CN, Me, Et, propyl, butyl, Ph, tolyl, methoxyphenyl or xylyl;  Y = =CH-(CH=CH)n- or N;  n  = 0 or 1;  An<->  = anion;  X5  = N; or X5R7 = S;  X6-B'-X5(R7)  = group completing benzothiazol-2-ylidene, 1,3-thiazol-2-ylidene, benzimidazol-2-ylidene, 3H-indol-2-ylidene, dihydropyridin-(2 or 4)-ylidene, 1,3-thiazolin-2-ylidene, 1,3-oxazolin-2-ylidene, imidazolin-2-ylidene, pyrrolin-2-ylidene or 1,3-dithiol-2-ylidene (all optionally substituted by 1-3 of Me, Et, CF3, OMe, OEt, F, Cl, Br, CN, NO2, COOMe, COOEt, NHCHO, NHCOMe, NHCOEt, Ph, tolyl, methoxyphenyl, OPh, NHCOPh, NMe2, NEt2, dipropylamino, N(Me)Ph, pyrrolidino, morpholino or piperidino);  R7 = Me, Et, propyl, butyl, cyanoethyl, hydroxyethyl, hydroxypropyl, allyl, 5-6C cycloalkyl, benzyl, phenethyl or phenylpropyl;  Y0  = N or CR18;  R14, R15  = H, Me, Et, propyl, butyl, cyanoethyl, hydroxyethyl, hydroxypropyl, 5-6C cycloalkyl, benzyl, phenethyl, phenylpropyl, pyridyl or 1,1-dioxo-tetrahydro-3-thienyl;  or NR14R15 = pyrrolidino, morpholino, piperazino, N-methylpiperazino or piperidino;  R16, R'16  = H, Me, Et, OMe, OEt or Cl;  or R16 + R15 and/or R'16 + R14  = di- or trimethylene bridge (optionally substituted by 1-3 Me);  R17  = H, Me, Et, OMe, OEt, Cl, CN, COOMe, COOEt, OCOR22, NR23COR22, OSO2R22 or NR23SO2R22;  R22  = H, Me, Et, CF3, 5-6C cycloalkyl, benzyl, OMe, OEt, NMe2, NEt2, NHMe, Ph, OPh, NHPh or pyridyl;  R23  = H or Me.